Improvement in pavements



s. c. PRESCOTT.

lmprqvement inPavements.

Patented luly23,1 872.

UNITED STATES PATENT OFFICE.

SHUBEAL C. PRESCOTT, 0E JERSEY CITY, NEw JERSEY, ASSIGNOR T0 HOW- ARDSMITH, on NEW YORK CITY.

IMPROVEMENT IN PAVEMENTS.

To all whom it may concern:

Be it known that I, SHUBEAL O. PRESCOTT, of Jersey City, in the State ofNew Jersey,

7 have invented certain new and useful Improvements in the Making andConstructing Street- Pavements made of Stone in combination withConcrete; and I do hereby declare that the following is a clear andexact description of the same, reference being had to the accompanyingdrawing making part thereof, and in which-- Figure 1 i represents a planview of my im-' provement. 1

Having stated the nature and object of my invention, I proceed todescribe the construction of the road orstreet bed, and the manner inwhich the pavement is laid or constructed upon the road or street bed soconstructed by the combination of the blocks of stone and concrete, andthe manner of constructing the w hole, thereby forming a pavement of themost permanent and durable nature.

The surface of the roador street bed is graded in the usual form, andthe blocks of stone are laid at right or any other desirable angle withthe curb of the street, resting upon the surface of the bed of thestreet, leaving any desirable space between the several series ofblocks. When so laid awedge is driven down between the several series ofblocks so laid, as aforesaid, at any desirable distance below thesurface of the road-bed. These spaces so formed between the severalcourses or series of blocks are then filled with concrete, and drivendown into the space so made by the manner of laying the blocks of stoneand driving the wedge between them down into the earth below the surfaceof the street, the concrete so forced down into the aforesaid spacesfilling the space below the Surface of the roadbed and forming ashoulder, upon ,each side of which each block of stone will in partrest, thereby forming a combination between the road-bed, concrete, andblocks of stone at once firm and durable, each block retaining itsposition, and not liable to be forced down by pressure from an evensurface.

I do not claim that the laying of a pavement of stone and concrete isnew; but

What I do claim, and desire to secure by Letters Patent, is

A pavement composed of blocks separated by concrete, the concrete beingdriven below the surface of the road-bed for the double purpose offorming stops to prevent the flow or water, and shoulders for thesupport of the blocks, as described.

' SHUBEAL O. PRESCOTT.

Witnesses WILLIAM G. HORN'FAGER, W. S. HORNFAGER.

